Fire and burglar alarm.



H. HESSE.

FIRE AND BURGLAR ALARM,

APPLICATION FILED APR.18. 1914.

1,107,945. Patgnted Aug. 18,1914.

WITNESSES INVENTOR "HERMAN HESSE, or moon, rnnnsrrvma.

man All?!) summit 11am Specification of Letters Patent.

'Patented Aug. '18, 1914.

Application filed April is, 191a Serial meanest.

To all whom it may com-em..-

Be it known that I, HERMAN Hnssn, a subject of the Emperor of Germany,residing at Easton, in the county of Northampton and State ofPennsylvania, have invented certain new and useful Improvements in Fireand Burglar Alarms, of which the following is a specification, referencebeing had therein to the accompanying drawing.

This invention relates to a fireand burglar alarm, and the rimary objectoi my invention is to provi e a device that can be used for eitherpurpose and in either instance an audible signal is sounded notifyingpersons in the vicinity. ofthe alarm that a door has beensurreptitiously opened or that there is a fire 'in proximity to the dooror window.

.1 nother object of this invention is to pro;

vide an alarm device thatcan be easily and quickly installed inconnection with a dwelling whereby the opening or destruction of a dooror window will produce an alarm.

A further object of this invention is to provide a simple, durable andinexpensive alarm device that can be used in connection with a suitablesource of electrical energy for reducing an audible signal.

ith the above and other objects in view the invention resides in thenovel construction,combin ation and arrangement of parts to behereinafter specifically described and then claimed.

' Reference will now be had to the drawing, wherein 2-- Figure 1 is aperspective vievv of the device in connection with a door, and Fig. 2 isa front elevation of a portion of the device partly broken away andpartly in section.

The reference numeral 1 denotes, by the way of an example, a door, andin proximity to said door the wall of provided with brackets 2. Arrangedupon the brackets 2 a carrier, comprising a bottom plate 3' and endwalls t, said end walls having slots 5 whereby the upper edges of theend walls will provide hand grips to permit. of the carrier being easilymoved. The end walls 4 are connected by parallel guide plates 6 havingvertically alining openings '2 for weights 8. Attached to the upper endsof the weights 8 are cables 9 that pass through screw e cs 10 and areconnectto doors or win owe, for instance the door 1. With the door 1 ina closed position a weight is held in an elevated position and theapartment is when the door. isopened, as shown in Fig. 1 the weight 8 islowered by gravity. One of the end Walls 4 is provided with a bindingpost 11 and the other end wall with a revoluible sheave 12. Attached tothe binding post 1 1 and passing over the sheave 12 is a taut wine 13,said wine having the free end thereof provided with a weight 14 formainsaid wire taut. The wire 13 is located directly beneath the lowerends of the weights 8 and the binding post 11 of said Wire is adapted tobe engaged by an open and shut switch 15, which is connected by a wire16 to a. suitable source of electric energy, as dry cells 17. The switch15 is of the ordinary and well known type which permits of the alarmdevice being placed in or out of operation. Locatedupon the bottom.plate 3 is a contact plate 18 having a'oinding post 19 at one endthereof, connected by a wire 20 to the source of electri cal energy.

The dry cells 1? are connected by wires 21 to an audible signal, as anelectric bell The device maintains a normally. open circuit and when oneof the weights 8 is lowered it shifts the wire 13 into ones. with thecontact plate 18 and thereihre sees the circuit through the audiblesignal. The electric bell is sounded to notify ersons within thevicinity of door 1 t at the same has been opened or destroyed. When thedevice is used as a fire alarm the cables 9 can be made of fusible wireor provided with fusible joints, whereby a fire in proximity to saidcables will melt the same or joints thereof and allow, the weights todescend and com lete an electrical circuit b shifting the wire 13 into'engagement with the contact plate 18.

One embodiment of the invention has been illustrated, but it is to beunderstood that the structural elements are susceptible to suchvariations and modifications as fall within the scope of the apperidedclaims.

What I claim is z- 1. In an alarm, the combination with doors, anaudible signal, and a suitable source of electrical energy in circuitwith said audible signal, of a carrier, weights movably sup orted insaid carrier and con nected to said doors and adapted to be maintainedin an elevated position by said doors being closed, a contact platecarried by said carrier and in circuit with said source of electricalenergy, and a taut wire supported by said carrier and in circuit withsaid source of electrical energy and adapted to be shifted by saidweights into engagementwith said contact plate to complete an electriccircuit through said source of electrical energy and said audiblesignal. 7

2. In an alarm, the combination with doors, a suitable source ofelectrical energy, and an electric bell in circuit with said source ofelectrical energy, of a carrier in proximity to said doors, weightsmovably supported by said carrier and connected to said doors andadapted to be maintained in an elevated position by said doors beingclosed, a contact plate supported by said carrier and in circuit withsaid source of electrical energy and said bell, and a taut wire inconnection with said carrier beneath said weights and in circuit withsaid source of electrical ener for maintaining a normally open circuitadapted to be closed by one of said weights shifting said wire intoengagement with said contact late.

3. In an alarm, the combination with doors, a suitable sourceofelectrical energy,

memes and van electric bell in circuit with said source of electricalenergy, of a carrier in proximity to said doors, weights movablysupported by said carrier and connected to said doors and adapted to bemaintained in an elevated position by said doors being closed, a contactplate supported by said carrier and in circuit with said source ofelectrical energy and said bell, a taut wire in connection with saidcarrier beneath said weights and in circuit with said source ofelectrical energy for maintaining a-normally open circuit adapted to beclosed by one of said weights shifting said wire into engagement withsaid contact plate, and means at one end of said carrier for controllingthe electrical circuit throu h said source of electrical energy and saidell. v

In testimony whereof ll, afix my signature in the presence of twowitnesses.

' HERMAN WSSE.

Witnesses:

WENZL BOXMANN, JUmUs Miss.

